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Names | |||
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Preferred IUPAC name
Trifluoro(nitroso)methane | |||
Other names
Trifluoro-nitrosomethane
Trifluoro-nitroso-methane Nitrosotrifluoromethane | |||
Identifiers | |||
Abbreviations | TFNM | ||
ChemSpider | |||
ECHA InfoCard | 100.005.804 | ||
EC Number |
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PubChem CID
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UNII | |||
CompTox Dashboard (EPA)
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Properties | |||
CF3NO | |||
Molar mass | 99.012 g·mol−1 | ||
Appearance | Deep blue gas[1] Purple solid | ||
Melting point | −196.6 °C (−321.9 °F; 76.5 K) | ||
Boiling point | −85 °C (−121 °F; 188 K) | ||
Hazards | |||
Occupational safety and health (OHS/OSH): | |||
Main hazards
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Toxic | ||
NFPA 704 (fire diamond) | |||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Trifluoronitrosomethane (commonly abbreviated TFNM) is a toxic organic compound consisting of a trifluoromethyl group covalently bound to a nitroso group. Its distinctive deep blue color is unusual for a gas.
Trifluoronitrosomethane was synthesized for the first time in 1936 by Otto Ruff and Manfred Giese at the Schlesische Friedrich-Wilhelms-Universität zu Breslau.[2] It was created through the fluorination of silver cyanide in the presence of silver nitrate and silver oxide.
Trifluoronitrosomethane can be produced from the reaction of trifluoroiodomethane and nitric oxide under a UV light with a yield of up to 90% in normal pressure. A small amount of mercury is needed as catalyst. The reaction results in the creation of iodine as a by-product.[3][4][5]
Although it is somewhat more kinetically stable due to its fluorine substituents, trifluoronitrosomethane, like other nitroso compounds, has a weak C–N bond of only 39.9 kcal/mol.[6]
Trifluoronitrosoethylene is also a similar deep blue gas.[7]